LCLS Ultrafast Science Instruments (LUSI)

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LCLS Ultrafast Science Instruments (LUSI)
Environment Safety and Health
M. Scharfenstein ESH Coordinator August 19-21,
2008
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Integrated Safety and Environmental Management

• SLAC Integrated Safety and Environmental
  Management
• SLAC ESH Manual
• LCLS Directorate Plan
• LCLS ESH management practices
• LCLS Requirement, Specification and Interface
  Documents
• Physics Requirements Documents , Engineering
  Specification Documents , Interface Control
  Documents , etc
• LCLS Work Authorization
• SOC Reviews
• ESH Reviews
• PMT sign-off
• The HAR reflects that LUSI is being developed
  following
• DOE O 413.3A / Program and Project Management
• DOE O 420.2A / Accelerator Safety
• DOE O 450.1 / Safety Management System

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Hazards Analysis

• Living document subject to an annual review,
  following LCLS QA protocols
• Hazards Analysis Report
• Reviewed and Approved by the DOE Stanford Site
  Office
• DOE O 413.3A / Program and Project Management
• DOE O 420.2A / Accelerator Safety
• DOE O 450.1 / Safety Management System
• Peer Review
• Hazards Analysis Report
• R. Hislop
• SME, Author Reviewer
• APS
• F. ONeil
• SME, Author of GLAST HAR

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Hazards Analysis contd

• The purpose of this HAR is to identify hazards
  associated with the design and operation of the
  LUSI project assess risk and establish controls
  
• Hazards capable of causing injury to personnel,
  harm to the environment, or damage to critical
  hardware have been considered in the analysis
• This HAR documents the safety analysis of the
  LUSI instrument design/build/install test
• A separate Operating and Support Hazard Analysis
  (OSHA) will be developed for LCLS experiments.
  The OSHA will evaluate activities for hazards
  introduced into the system by operational and
  support procedures

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Hazards Analysis contd

• The Environmental Assessment developed for the
  LCLS resulted in a Finding of No Significant
  Impact encompassed the physical space occupied by
  LUSI and its operations.
• LUSI instruments are being designed so that they
  will not pose hazards to people or the
  environment.
• The most significant potential hazard associated
  with LUSI instruments is that associated with
  ionizing radiation.
• The LUSI instruments are designed to 10CFR 835
• defines radiation protection regulations for the
  protection of individuals from ionizing radiation
• LUSI will design, build, install and test
  instruments within parameters of LCLS SAD
• The instruments will comply with the approved
  Accelerator Safety Envelope (ASE)

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Overview of Hazards

• The results of the Hazards Analysis Report were
  consistent with those of the LCLS analysis that
  resulted in a low hazard facility determination
  following the criteria defined in DOE-O 420.2B,
  Safety of Accelerator Facilities, based on the
  following
• LCLS requirements for SLAC Linac operations are
  well within existing safety and operating
  envelopes of the facility.
• The average power of the LCLS x-ray beam, the
  energy and power of the electron beam, and hence
  the radiation hazard they pose are all well
  within the range of applicability for SLAC
  shielding and safety systems
• The risk (probability consequences) of all
  hazards will be similar in nature and magnitude
  to those already found in the present accelerator
  storage ring experimental programs
• Existing and mature programs (citizen safety
  committees, ESH division, Work Authorization)
  will be engaged to ensure that all aspects of the
  design, installation, and testing phases of LUSI
  will be properly managed

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LUSI Configuration

• Workplace Hazards Analysis
• Radiation
• Fire Protection
• Electrical
• Seismic
• Chemical
• Thermal/Cryogenic
• Mechanical
• Environmental Insults
• Air Emissions
• Waste Material Disposal
• Magnetic
• Oxygen Deficiency
• Vacuum / Pressure
• Laser
• Hardware Design Hazards
• Pinch points
• Sharp corners

X-RAY PUMP/PROBE
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Hazard Assessment Process

• The hazard assessment process is a principal
  factor in the understanding and management of
  technical risk. System Safety is an integral
  part of the overall program risk management
  decision process
• Hazard severity is an assessment of the worst
  potential consequence, defined by degree of
  injury or property damage, which could occur
• Probability is the likelihood that an identified
  hazard will result in a mishap, based on an
  assessment of such factors as location, exposure
  in terms of cycles or hours of operation, and
  affected population.
• These levels are derived from MIL-STD-882D,
  Standard Practices for System Safety.
• Defense Standards are also used by other
  non-Defense government organizations, technical
  organizations, and industry

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System Safety

• System Safety is an integral part of the overall
  program risk management decision process
• Design to Eliminate Hazards
• Design to Control Hazards
• Provide Safety Devices
• Provide Warning Devices
• Provide Procedures or Training
• Hazard Acceptance or Terminate System

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Occupational Safety Requirements

• The LUSI equipment shall be designed and
  constructed in such a manner to protect the
  safety of workers, the public and the environment
  following 29CFR1910. The safety philosophy and
  practice to be followed on the LUSI project will
  include the following elements
• DOE P 450.4 Safety Management System Policy
• Adherence to SLAC Work Smart Standards
• 10CFR835 Occupational Radiation Protection /
  ALARA
• Controlling hazards by eliminating them whenever
  possible
• Implementing safety programs to ensure worker
  safety during construction and testing
• Performing independent design reviews

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Installation Phase Hazards

• Radiation there is no source of radiation
  during the fabrication and installation phases
  of the project
• Fire Protection - LUSI is protected by a
  conventional fire sprinkler system and a Very
  Early Smoke Detection Apparatus (VESDA) system.
• Electrical hazards will be controlled by
  adhering to NFPA 70E standards
• Thermal/Cryogenic Handling of cryogens shall be
  compliant with SLAC ESH Manual Chapter 36,
  Cryogenic Oxygen Deficiency Hazard Safety
• Oxygen Deficiency hazard potential is minimal
  due the small quantities of gases in liquid state
  that will be used within the facility
• The requirement for air monitoring will be
  included in the evaluation of the hutches.
• Vacuum / Pressure - LUSI consists of numerous
  vacuum components and the vacuum chambers will
  have burst disk that are compliant with 10CFR851.
  
• Pressure relief valves are integral to the vacuum
  system to prevent them from being
  over-pressurized while venting.  
• Others Chemical, Environmental Insults,
  Magnetic, Mechanical, Seismic
• Identified and addressed

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Operations Safety

• Workplace Hazards Analysis
• Radiation
• Fire Protection
• Electrical
• Seismic
• Chemical
• Thermal/Cryogenic
• Mechanical
• Environmental Compliance
• Control of Effluents
• Oxygen Deficiency
• Vacuum / Pressure
• Robot Arm
• Laser

• Occupational Safety
• Radiation Exposure Control
• Personnel training
• Shielding configuration control
• Monitoring
• Safety Interlocks
• Beam Loss Control
• Radiation monitors
• TLDs for personnel and areas
• Waste Minimization
• Experiment review
• Quantities minimized
• Less hazardous substitutions
• Disposal process

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Hazard Consequence Rating
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Conclusion

• Integrated Safety and Environmental Management
• Following SLAC ISEMS Plan
• LCLS Directorate Plan
• Following SLAC ESH Manual
• Following LCLS ESH management practices
• Work Authorization
• Hazard Analysis Report
• Approved by DOE SS0
• ESH requirements met for CD-2

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ESH

• Thank you